Operation Manual – NTP
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 1
NTP Configuration
1-6
NTP
implementation
Configuration on S3600 series switches
mode
Broadcast mode
z Configure the local S3600 Ethernet switch to operate in
NTP broadcast server mode. In this mode, the local
switch broadcasts NTP packets through the VLAN
interface configured on the switch.
z Configure the S3600 switch to operate in NTP broadcast
client mode. In this mode, the local S3600 switch
receives broadcast NTP packets through the VLAN
interface configured on the switch.
Multicast mode
z Configure the local S3600 Ethernet switch to operate in
NTP multicast server mode. In this mode, the local switch
sends multicast NTP packets through the VLAN interface
configured on the switch.
z Configure the local S3600 Ethernet switch to operate in
NTP multicast client mode. In this mode, the local switch
receives multicast NTP packets through the VLAN
interface configured on the switch.
Caution:
An S3600 Ethernet switch can operate in the NTP peer, NTP broadcast server, or NTP
multicast server mode only after its clock is synchronized.
1.2 Configuring NTP Implementation Modes
An S3600 Ethernet switch can operate in one of the following NTP modes:
z NTP client mode
z NTP server mode
z NTP peer mode
z NTP broadcast server mode
z NTP broadcast client mode
z NTP multicast server mode
z NTP multicast client mode
1.2.1 Configuration Prerequisites
You need to perform configurations only on the client (or the active peer) when you
want an S3600 Ethernet switch to operate in NTP server mode (or NTP peer mode).
However, you need to perform configurations on both the server and client when you
want the switch to operate in NTP broadcast mode or NTP multicast mode.